Title: Tailoring capping-layer composition for improved stability of mixed-halide perovskites

Journal Article · · Journal of Materials Chemistry. A
DOI: https://doi.org/10.1039/d1ta07870d · OSTI ID:1886385
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4];  [4]; ORCiD logo [4];  [4]; ORCiD logo [5];  [6];  [4]; ORCiD logo [7]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Helmholtz-Zentrum Berlin (HZB), (Germany). German Research Centre for Materials and Energy
  2. Georgia Institute of Technology, Atlanta, GA (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  5. Florida State Univ., Tallahassee, FL (United States)
  6. Georgia Institute of Technology, Atlanta, GA (United States); Univ. of Colorado, Boulder, CO (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
  7. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Toyota Research Institute, Los Altos, CA (United States)
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Incorporating a low dimensional (LD) perovskite capping layer on top of a perovskite absorber, improves the stability of perovskite solar cells (PSCs). However, in the case of mixed-halide perovskites, which can undergo halide segregation into single-halide perovskites, a systematic study of the capping layer's effect on mixed-halide perovskite absorber is still lacking. This study bridges this gap by investigating how the 1D perovskite capping layers on top of MAPb(IxBr1–x)3 (x = 0, 0.25, 0.5, 0.75, 1) absorbers affect the films' stability. We utilize a new method, dissimilarity matrix, to investigate the image-based stability performance of capping-absorber pair compositions across time. This method overcomes the challenge of analyzing various film colors due to bandgap difference in mixed-halide perovskites. We also discover that the intrinsic absorber stability plays an important role in the overall stability outcome, despite the capping layer's support. Within the 55 unique capping-absorber pairs, we observe a notable 1D perovskite material, 1-methoxynaphthalene-2-ethylammonium chloride (2MeO–NEA–Cl or 9-Cl), that improves the stability of MAPbI3 and MAPb(I0.5Br0.5)3 by at least 8 and 1.5 times, respectively, compared to bare films under elevated humidity and temperature. Surface photovoltage results also show that the accumulation of electrostatic charges on the film surface depends on the capping layer type, which could contribute to the acceleration/deceleration of degradation.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
Massachusetts Institute of Technology (MIT); National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC); Skoltech; US Air Force Office of Scientific Research (AFOSR); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
AC02-06CH11357; EE0009512
OSTI ID:
1886385
Journal Information:
Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 6 Vol. 10; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (27)

In Situ Growth of 2D Perovskite Capping Layer for Stable and Efficient Perovskite Solar Cells journal February 2018
2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS journal March 2020
Record Open‐Circuit Voltage Wide‐Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure journal April 2019
High Efficiency Perovskite‐Silicon Tandem Solar Cells: Effect of Surface Coating versus Bulk Incorporation of 2D Perovskite journal January 2020
Monolithic Perovskite Tandem Solar Cells: A Review of the Present Status and Advanced Characterization Methods Toward 30% Efficiency journal May 2020
Role of the chemical substitution on the structural and luminescence properties of the mixed halide perovskite thin MAPbI3−xBrx (0 ≤ x ≤ 1) films journal May 2016
Learning similarity with cosine similarity ensemble journal June 2015
A data fusion approach to optimize compositional stability of halide perovskites journal April 2021
Photoinduced Anion Segregation in Mixed Halide Perovskites journal April 2020
Naphthalenediimide Cations Inhibit 2D Perovskite Formation and Facilitate Subpicosecond Electron Transfer journal October 2020
Thermodynamic Origin of Photoinstability in the CH 3 NH 3 Pb(I 1– x Br x ) 3 Hybrid Halide Perovskite Alloy journal March 2016
Tunable Polaron Distortions Control the Extent of Halide Demixing in Lead Halide Perovskites journal June 2018
Polyhydroxy Ester Stabilized Perovskite for Low Noise and Large Linear Dynamic Range of Self-Powered Photodetectors journal February 2021
Origin of Reversible Photoinduced Phase Separation in Hybrid Perovskites journal January 2017
Defect-Assisted Photoinduced Halide Segregation in Mixed-Halide Perovskite Thin Films journal May 2017
Light-Induced Anion Phase Segregation in Mixed Halide Perovskites journal November 2017
Fully Vacuum-Processed Wide Band Gap Mixed-Halide Perovskite Solar Cells journal November 2017
Vacancy-Mediated Anion Photosegregation Kinetics in Mixed Halide Hybrid Perovskites: Coupled Kinetic Monte Carlo and Optical Measurements journal September 2018
Impact of Surfaces on Photoinduced Halide Segregation in Mixed-Halide Perovskites journal October 2018
Electronic Traps and Phase Segregation in Lead Mixed-Halide Perovskite journal November 2018
Predicting Antimicrobial Activity of Conjugated Oligoelectrolyte Molecules via Machine Learning journal November 2021
Rationalizing the light-induced phase separation of mixed halide organic–inorganic perovskites journal August 2017
Double-slit photoelectron interference in strong-field ionization of the neon dimer journal January 2019
U1 snRNP regulates cancer cell migration and invasion in vitro journal January 2020
Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics journal January 2015
An interface stabilized perovskite solar cell with high stabilized efficiency and low voltage loss journal January 2019
Effects of Distance Measure Choice on K-Nearest Neighbor Classifier Performance: A Review journal December 2019

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